Hi,
I've started to experiment with vacuum bagging wings and it works great. One issue that I have is that when tip of the wing is rounded and tapered to the tip, the mylar that is covering the top and bottom starts to wrinkle on the rounded part of leading edge

This leaves me with uneven surface (very uneven) on the wing tips. I'm trying with to overcome this issue but maybe some of you more experienced people can give me some hint?
I'm using 0.25mm thick mylar sheet (maybe to thick?).
I'm bagging the wing (for now only the part of it for testing) without any surrounding molds (as I'm sanding foam, not wire cutting).
Thanks a lot for any advice!
ps. Sorry for the repost from sailplanes but I think that this forum will be better for this question.